Oil burner



June 16, 1925. A

- A. E. BoRNEMl-:IER ET AL OIL BURNER Filed Dec. 29, 1924 lll Patented June 16, 1925.

ARTHUR BORNEMEIER.; F; LINCOLN; ul-N1)i MART-IN TnzBoRNEMEIER; oF f f, Mun-1300K,

vTo aZZ'wzom z'ymag/ conern: A

' Be it known ,rtl-mtl We,,-ARTHUR E. vBORNE- andl MARTIN T.- onmnsinmR,4 citizens Y of the United States, residing,frespectvely, `at Lineolmwinftheneounty@oLancaster and lSt ate .oflNehreske-,af,andfeti'Murdock, in the county o'fCesseandgvStaite of Nehraskayghawe ments"y in(xOil-Burr-ners,l o'rwhich the following 'is a specloation. e

f Ouminventionf :relatjes'to power `o1lh1,ufners and 4rit is designedor iiseain fsteves furnace-s Another,` objectrourfinvention isfthe; prov'-v p visionsof'rneansrwhereby the outletlopen-ing lforffche vaporzedvoihmaybe easily ad] liste/d in size sof :alsz to." properly, `proportion the ,i oil veponfis mixedbeforeignition.` z

( )tlflersfY rourfohjectsllerej theprovision Joli e ihurner which4 oanrheprodnoedr at a' low' :oost

for f11:rnace,1the instaliletionoff the burner =requiring; r no delicatefadjustrnents end thereforeirequi-ringmozlspeeial skill; il Y Other objects will be ,pointedifouts inthje followingfdesripionffwhich pertains to fthe fpreferred formfrouminwention. Relierrfing-fnow'tofthe d1a\-vv r1gsk y' Figure-1 is:l awoentral-vertical sectional view oftheentirefburnerf'showing alsoone of :the .elem-ps1forrholdingthe; burner secured Ato the;girate.Y y

Figure. 2 is# af. topV fp lan: View: ofntheventire burner.

\' Figure 8 -iswseotionalview of fragmentary portion: of oun' yiburner;showing-in en --lerged View. th'e arrangement of parts yfor preventing oztrhonization at; the v4dueli outlet.

@un ihurner'feonsistsaof three lmein parts: e* hase,-fconduits fforfthef liuelendi airy-end a flame. spreader. E The hase, which iis shown vapor through" :the:reiriwithwivliieh fthe?v oil and which can bei-easily]installedin azfstove at@ 10 isdesignedfto lheseoured Xto the,.fgrazte .offfa stovei o1- urnaoenenfthe suppernside thereof. It ls'in the Yforn'r of an. annuler pen Withan-open Centralpor'tiomy Ineordeiito AWashers on .the.under'fsideoltheJ grate; f The 1 vvhase 10 is als@ providedawjth the-*usuali everrflowoutlet 13,2 which: isconnected withfan autoineticdshuto(not showmp, f

The conduit forl theuelwand ejirfeonsists Iofi twmeoneentrie ftufbesflorf @mindere-14e .and

l5, which are spaced from eaeh-otherfsoas to` r,provide-.f a passager. therebetween# The 1n-ner cylinder y 15 Ris; -eonneetedet its lolwer ende-With a Apower blower', 'whioh' feeds; :a

.stroi'lgcurrent of@ airgfthrough the cylinder to fthe 11eme* y TheV cylinder- :14-fis provided et :its lower-enddwith ionelormore oilfffinlet fpipes, 16;' Theeylinderlffterininetes con# siderahlfy :short off'the :bottom offthez-oylin- :der 15,l 4and isprovded'withfa'zhottoni in the A:formloffe ring; 17, Which-'isiirmly secured to both rcylinders to=ff-or1neny a-'ir tight and oil tig-ht conneotionfhetweeni the; cylinders.

'samelfmanfner to the-base 10.

The;y cylinder --15 proj'eets :somewhatl above -therV top 4off-the cylinder Mures 'shown in`v Eignres ,1"2t-ndf3.` vThe'projecting portion-"of lthe` cylinder 415- is :provided With screw threads@ on 'its inner 'snrfa-cewfor'thereoep- `videdfwithfy acentral1channel'for'the passage fof\ the1l air? current end-#With en *annular 'socket for thewreceptio'n of theupperzendaof the Vcylinder 15,:Lnd this-socket is: provided Withwthe screw: ithread'- Whiohr is adapted to engage `withthe-:screw thread on `the project- 'lhe: nut: 18 has' substantially :they `same Adiameter as that of the-cylinder'. '14; z'In order ato function: properly 'this diameter" rmust be xannuler npassage bet-Ween the cjf'linders 14 and finds its exit just underneath zthe edge ofthe nut'lS. Itwill a'l'soifbe seeireth'at fasi the nut. 18 4:isf screwed@v up :or .zdowin the outlet: of :the oilgpassage fWillhe fenlargedlior reduced in size, and that if the nut 18 is screwed down and seated on the upper edge of the cylinder 14C the outlet will be entirely closed.

The great difficulty with all oil burners is the tendency of the burner to accumulate carbon at or near the point of ignition. In our burner this point would be at the upper edge of the cylinder 14 and unless provisions were made for automatically removing this carbon the burner would in time become clogged. In our burner we have bevelled the cylinder 14 at its upper edge in such a manner that dislodged particles of carbon will fall outside the oil passage. It will also be seen that the screw threads on the nut 18 and on therupper end of the cylinder 15 are so positioned that neither the oil vapor nor the flame can come in contact with the screw threads. In our earlier experiments we found that if the screw threads were permitted to accumulate carbon the screw threads would then become so clogged that they would cease to function and it would be impossible to further adjust the outlets for the oil vapor. y

The cap 19 as shown in Figure 1 serves primarily to direct the course of the flame and secondarily as 'a wrench for turning the nut 18. It consists of a cylindrical portion, which comes down over the fuel'vapor outlet, and of a dished portion covering the top of the cylindrical portion. The nut 18 is provided in its upper surface with one or more radial grooves, and depending from the upper portion of the cap 19 there are wings corresponding in number and position with the grooves of the nut 18.

These wings seat in the grooves so that when the cap 19 is turned the nut is also forced to turn. In order to make it easy to turn the cap 19 we have provided a plurality of apertured ears 20, preferably three in nu1nber. When it is desired to turn the cap it is only necessary to insert the end of the poker in the aperture of one of the Vears and to impart the turning movement by pushing or pulling on the poker. The cap 19 simply rests on the burner and may be lifted off at any time-to give access to the nut 18 and to other working parts of the burner. T o facilitate the removal of the cap .the capis provided with a handle 21 having an aperture of sufficient size that the hand may be inserted.

During the operation of our burner a powerful current of air is'forced upwardly through the cylinder 15 and then deflected downwardly on the outer side of the cylinder 14. The flame is formed by the ignition of the mixture of the oil vapor and air nearest the exit of the passage of the oil The powerful current of air meeting the current of oil vapor causes the two .to be intimately mixed just before and durvaporization of oil vcombined ing ignition and it also directs the flame downwardly against the outside wall of the. cylinder 14'. rllhe cylinder 14; is thus surrounded throughout its entire length by a cylindrical sheet of flame which heats the cylinder 11.4. and thoroughly vaporizes even the heaviest of fuel oils before the oil is permitted to reach the exit. This thorough with the thorough mixing of the oil vapor with the air insures that the combustion is almost perfect, leaving litt-le or no unconsumed carbon. At its lower end the flame is directed outwardly by the` pan 10 against the walls of the furnace.

Having thus described our invention in terms which will be readily understood by others skilled in the art to which it. pertains, what we claim. as new and desire to secure by Letters Patent of the United States is:-

1. An oil burner including an upright elongated cylinder for the upward passage of air, a second cylinder surrounding and concentric with said first cylinder, said second cylinder terminating below the level of the upper extremity of said first cylinder, said two cylinders being spaced apart to provide a. passage for oil andoil vapor, a nut secured to said first cylinder, said nut being provided with an aperture for the exit of air from the said first cylinder, and means for adjusting said nut in a vertical direction to open or close the exit of the passage for oil vapor.

An oil burner comprising a vertically positioned elongated cylinder for the upward passage of air, the upper portion of said cylinder being screw threaded on its inner surface, a second cylinder surrounding and spaced from said first cylinder. the up per edge of said second cylinder being below the upper edge of said rst cylinder, and a nut engaging the screw threaded portieri of said first cylinder, said nut being provided with an aperture for the exit of air from said first cylinder, said nut being adapted lto close the passage between the said two cylinders.A

3. In an oil burner, an elongated cylinder which is adapted to convey a current of air upwardly, the upper portion of said cylinder being screw'threaded on its inner` surface, a second cylinder surrounding and spaced from said first cylinder, the space between said two cylinders being adapted to conduct an upward current of oil vapor, a. nut secured to the screw threaded poition of said first cylinder and being adjustable thereon in a vertical direction, said nut being adapted to close the exit to the passage between said two cylinders, the upper edge of said second cylinder being bevelled whereby carbon deposits are automatically .dislodged when said nut is forced down to closer-tire eXitof the oil Vapor passage, saidl nut being provided withy a central aperture 'for the exit of air from Saidffirst eylinder.

4. In an oil burner, an elongated vertiolilly-positioned cylinder for Conducting a current of air upwardly, EL Second cylinder surrounding and spaced from lirst `cylinder, the space between said two Cylinders being` adapted to conduct oil vap'orupwardly und hzwingjr an exit at its upper extremity, meansfor introducing combustible oil into the lower portion of the space between said two cylinders, the ,upper portion of said irst cylinder being screw threaded on itlQ i5 inner surface, a nut engaging the Soren7 threaded portion of said first cylinder, said nut being provided with an aperture for the exit` of au' from said first cylinder, said *nut being adapted to close the exit to the `passage between said two cylinders, undv a flume spreader surroundingl the nut and the upper portion of said two Cylinders, said Haine spreader engaging said nut whereby the nut muy be rotated, and a plurality of i apertured ears extending radially from said lil 

